v3.26.3
Cover
 12 Months Ended
Jun. 30, 2026
shares
Document Information [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Financial Statement Error Correction [Flag] false
Document Shell Company Report false
Entity Interactive Data Current Yes
Document Accounting Standard International Financial Reporting Standards
ICFR Auditor Attestation Flag false
Amendment Flag false
Document Period End Date Jun. 30, 2026
Document Fiscal Year Focus 2026
Document Fiscal Period Focus FY
Entity Registrant Name Chilwa Minerals Limited
Entity Central Index Key 0002113605
Entity File Number 001-43454
Entity Incorporation, State or Country Code C3
Current Fiscal Year End Date --06-30
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status No
Entity Shell Company false
Entity Filer Category Non-accelerated Filer
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Address, Address Line One Level 28
Entity Address, Address Line Two 140 St George’s Terrace
Entity Address, City or Town Perth
Entity Address, Country AU
Entity Address, Postal Zip Code 6000
Title of 12(b) Security Ordinary Shares, as represented by American Depositary Shares
Trading Symbol CHWM
Security Exchange Name NASDAQ
Entity Common Stock, Shares Outstanding 98,006,092
Business Contact  
Document Information [Line Items]  
Contact Personnel Name Cadell Buss
Contact Personnel Email Address cbuss@chilwaminerals.com.au
Entity Address, Address Line One Level 28
Entity Address, Address Line Two 140 St George’s Terrace
Entity Address, City or Town Perth
Entity Address, Country AU
Entity Address, Postal Zip Code 6000
City Area Code +61
Local Phone Number 8 6189 4924